High severity · published Sep 15, 2021
CVE-2021-3796
vim is vulnerable to Use After Free
7.3
CVSS
1.7%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0 · source: NVD
FE
Fedora · Fedoraproject
33; 34; 35 · source: NVD
OS
Ontap Select Deploy Administration Utility · Netapp
All versions, or not specified · source: NVD
VI
Vim · Vim
before 8.2.3428 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3796
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3796
Mailing List
http://www.openwall.com/lists/oss-security/2021/10/01/1
Patch
https://github.com/vim/vim/commit/35a9a00afcb20897d462a766793ff45534810dc3
Exploit
https://huntr.dev/bounties/ab60b7f3-6fb1-4ac2-a4fa-4d592e08008d
Mailing List
https://lists.debian.org/debian-lts-announce/2022/01/msg00003.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7K4JJBIH3OQSZRVTWKCJCDLGMFGQ5DOH/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S42L4Z4DTW4LHLQ4FJ33VEOXRCBE7WN4/
More from Debian Linux
10.0
CVE-2025-32433
Erlang/OTP SSH Vulnerable to Pre-Authentication RCE
10.0
CVE-2025-24201
Apple Multiple Products WebKit Out-of-Bounds Write Vulnerability
10.0
CVE-2021-44228
Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints
10.0
CVE-2015-3306
ProFTPD Improper Access Control Vulnerability
9.8
CVE-2026-24061
GNU InetUtils Argument Injection Vulnerability
